Refrigerating apparatus



Feb. 25, 1941. A A KUCHER 2,233,102

REFRIGERATIENG APPARATUS I Filed Aug. 10, 1936 z Sheets-Sheet 1 INVENTOR ATTORNEY Feb. 25, 1941. xum- 2,233,102

REFRIGERATING Arrmnus Filed Aug. 10, 1936 2 Sheets-Sheet 2 VENTOR A/vo/eew .kuaHE/ Patented Feb. 25, 1941 UNITED STATES' PATENT OFFICE BEFRIGERATING APPARATUS Andrew A. Kucher, Dayton, Ohio Application August 10, 1936, Serial No. 95,091 2 Claims. (01. 248-26) The present invention relates to apparatus for mounting vibratory mechanism and more particularly to apparatus for mounting the moving parts of refrigerating mechanism such as the compressor and driving motor therefor.

One of the objects of the present invention is to utilize resilient means for example springs under compression as the only apparatus for con-,

necting a vibrator mechanism to the support therefor.

Another object of the present invention is to suspend a vibratory mechanism bya resilient means such 'as a spring under compression and to interpose one or more resilient members such as springs under compression between the vibratory mechanism and its support for limiting swaying of the mechanism.

A further object is=to support the vibrating mechanism within a frame and on a single spring and to hold the mechanism spaced from the frame by a plurality of springs under compression.

Other and further objects and advantages will be apparent from the following description, reference being had to the accompanying drawings wherein a preferred form of embodiment of the present invention is clearly shown.

Fig. 1 is a sectional view of the motor compressor casing showing the apparatus used to mount the mechanisms within the casing and also the apparatus for mounting the casing to the base plate;

Fig. 2 is a side view of the lower part of a re- I frigerator showing the casing and its supported parts in place;

Fig. 3 is a front view of the double saddle suspension used to suspend the casing from the base plate;

Fig. 4 is a side view of the double saddle suspension taken at 90 to Fig. 3, and;

Fig. 5 is a plan viewof the reenforced base plate.

A preferred embodiment of my invention is shown in Fig. l where a base plate, support or mounting plate 20 of a refrigerator 2| is shown in part. The plate 26 is reenforced by parallel, longitudinal ribs 22 and 24 which are formed into the plate or which may be strips spot welded or riveted in place. A rib 25 is disposed transversely from the aforementioned ribs.22 and 24 shown in Fig. 5.- The ribs 22, 24 and 25 main.-

prevent the parts, flash welded or joined in some other suit- 20 and at 90 to the saddle 34. The spring 28 is able manner is suspended from the base plate 20 by a spring 26. The spring 28 is held between a double saddle suspension 30 which is formed by two saddles 32 and 34 of strip metal ibeing placed at right angles to one another as shown 5 in Figs. 3 and 4. The yoke of saddle 34 is spot welded or riveted to the'casing 26 and the saddle 32 is likewise suitably secured to the base plate disposed between the two crossed saddles 32 and 10 34 so that it is under compression when the casing 26 is suspended from the base plate 20. The saddles 32 and 34 have integrally formed extending spacers 36 at their free ends and these spacers 36 are bent to fit snugly within the coiled spring 28. Thus in effect the spacers 36 align the spring 28 and likewise prevent displacement or removal of the spring 28. The suspension afforded by the double saddle arrangement 36 and the spring 28 isthe only means of suspen- 20 sion provided for the casing 26. To assure that the casing is maintained level and that the sway of the casing is limited, a plurality of springs 40, (only two of which are shown) are provided. Preferably three evenly spaced springs 46 are de- 25 sirable'. The springs 40, are set over protrusions 46 formed in the casing '26, and over protrusions 52 formed in the base plate 20. Thus the springs 40 are held in place against accidental removal. It will be noted that in this construction the springs-40 are under compression also. In other words the aligning springs 40, as they may be termed, are disposed in opposition to the suspension, spring 28. This mounting therefore provides a. flexible, vibration reducing connec- 35 tion between the casing 26 and the base plate 20 and yet one that does not have any appreciable side play or undesirable movement. The casing 26 may be a sealed containerfor a motor com-- pressor unit or it may be a frame that is substantially open, when it is used as a motor suspension. In either case the suspending means reduce the translated vibration to a minimum.

In the embodiment shown in Fig. 1 a motor compressor is enclosed by the casing 26. This 45 unitary assembly 60 includes a motor 62 and an attached rotary type compressor 64. The entire assembly 66 is supported within the casing 26 by a single compression spring 66 which is centrally disposed beneath the assembly 66. A circular re- 50 cess 16 is provided in the body of the compressor to maintain the coiled spring 66 in position at one end thereof and the opposite end of the spring encircles an inwardly extending protrusion 12 formed in the casing 26. Thus the spring 66 is held in place by the recess 10 at one end and by the protrusion I2 at the other end. The entire weight of the motor assembly 60 rests on the spring 66 and keeps the spring 66 under compression. To maintain the motor 62 in position and out of contact with the walls of the casing 26, a plurality of springs 18 are disposed around the outer circumference of the motor 62 and between the motor 62 and the casing 26. For simplicity, only two springs 18 are shown but it is desirable to employ three, evenly spaced from one another. The springs 18 are held in position in circular recesses 82 disposed, in this case, in the side frame of the motor 62.

Thus in the assembly of the motor-compressor unit 60 and the casing 26, the support spring 66 is set in recess Ill and the springs 18 set in recesses 82 and the entire assembly slipped into the lower half of the casing 26. It is to be understood that springs 18 are under compression when they are in position. When the unit 60 is in place, the upper half of the casing 26 may be put in place, and suitably attached.

The inlet to the compressor may be through a resilient tube 90, looped within the casing and about the compressor 64, and if the mounting is utilized, as shown, for a sealed refrigerating sys tem, the tube 96 will be hermetically joined with casing 26. The compressor may discharge directly into the casing and in that event, the outlet tube 9| will be joined hermetically with the casing.

Although in the present embodiment a motorcompressor unit is described, it should be understood that the mounting is applicable to any type of vibratory mechanism.

From the foregoing it will be noted that I have provided a resilient mounting for a vibrating mechanism that eliminates, to a large degree, the translation of vibration to a fixed mounting. The moving part, for example the motor compressor 60, is resiliently mounted within a casing 26. There is no support between the motor-compressor and its casing except through the supporting springs under compression. The casing 26 in turn is resiliently supported from the fixed mounting for example a bottom wall 20 of a refrigerator. In this manner the vibration and attendant noise is greatly reduced while an inexpensive and efficient means of mounting is provided.

The suspension of the casing 26 and its enclosed parts may be suspended from the bottom wall of a refrigerator, toward the back of the refrigerator. This type of support or suspension of the casing enables the casing to be brought very close to the bottom wall of the refrigerator and therefore whenthe refrigerator is in an average size room, the front wall of the cabinet proper obscures the casing from the angle of sight of an average height person. Thus by using a suspending means of the described construction the casing and its enclosed parts may be quite inconspicuously and easily mounted.

While the form of embodiment of the present invention as herein disclosed constitutes a preferred form, it is to be understood that other forms might be adopted, all coming within the scope of the claims which follow:

I claim:

1. In combination, a support, a frame carried by the support, a vibratory mechanism within-the frame, a centrally disposed resilient means carried within the frame and resiliently supporting said vibratory mechanism and mechanism comprising the sole means for limiting lateral movement of the vibratory mechanism including a plurality of resilient members arranged in substantially the same horizontal plane and spaced from and opposing one another anddisposed between the mechanism and frame at substantial distances from the top and bottom of the vibrating mechamsm.

2. In combination, a frame; a unitary assembly disposed within the frame and including a motor and mechanism driven thereby; resilient means interposed between. the bottom of the assembly and the frame for resiliently supporting the assembly; and mechanism comprising the sole means for limiting lateral movement of the assembly including a single set of resilient members arranged in substantially the same horizontal plane and interposed, in spaced relation with one another, between the assembly and frame at substantial distances from the top and bottom of the assembly.

ANDREW A. KUCHER. 

